CNN's Erin Burnett reports on NASA's most ambitious mission ever - the landing of NASA's "Curiosity" rover on Mars.
Mars landing will be "seven minutes of terror"
The future of Mars exploration is, at least in the short term, riding, pardon the pun, quite literally on a two thousand pound car sized rover called Curiosity.
The weight of the two and a half billion dollar mission, called the Mars Science Lab, is not lost on the scientists and engineers at NASA’s Jet Propulsion Laboratory in California who built Curiosity. Mission Chief Engineer Rob Manning doesn’t sugar coat it. “If it does fail is that the end of exploration? Well, it may be the end for awhile. It may require a stop and regroup. Certainly it will.”